Finding the Third Proportional to 459,381 and 673,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   459,381 : 673,492.50 = 673,492.50 : x
2. Step 2: Convert to fraction form
   459,381/673,492.50 = 673,492.50/x
3. Step 3: Cross multiply
   459,381x = 673,492.50 × 673,492.50
4. Step 4: Simplify right side
   459,381x = 453,592,147,556.25
5. Step 5: Solve for x
   x = 453,592,147,556.25/459,381
6. Step 6: Final answer
   x = 987,398.58